Just started about 4 days ago. Sometimes it goes up to 80 or 90 PSI, then
it will drop to midway on the gauge and then all of a sudden it will drop
all the way down. Today it went to about 50 PSI, dropped all the way down
3 times within an hour's driving time, then it comes back up by itself to
50, then when I shut it off and turn it back on it went up halfway,
dropped down about 10, stayed that way for about a 45 min drive. I
appreciate your interest and any ideas you might have.